Warning: Do not install “Google Defender”

With as much as we write about sophisticated malware and security breaches, sometimes the most effective attacks are the ones that prey on human error. In the most recent case, all it took was an email with a perfect imitation of one of Google’s security screens. If you use Gmail, you need to know how to avoid this.

Broadly defined, “phishing” is any form of fraud in which an attacker tries to learn information such as login credentials or account information by masquerading as a reputable entity or person in email, IM or other communication channels.

These messages prey on users who click links, images and buttons without thoroughly investigating where they lead to. Sometimes the scam is as simple as an image with a government emblem on it that links to a website containing malware. Just hovering your mouse over the image would be enough to see through it. But some phishing schemes are far more difficult to recognize.

The Google Defender scam

Recently, an email spread to millions of Gmail accounts that almost perfectly imitated a message from Google. The text read:

“Our security system detected several unexpected sign-in attempts on your account. To improve your account safety use our new official application “Google Defender”.

Below that was a button to “Install Google Defender”. What made this scheme so hard to detect is that the button actually links to a totally legitimate site...within Google’s own framework. When third-party app developers create Gmail integrations, Google directs users to an in-house security page that essentially says, “By clicking this you are giving Google Defender access to your entire inbox. Are you sure you want to do this?”

Even to wary users, the original message looks like it came from Google. And the link took them to a legitimate Google security page -- anyone could have fallen for it. The Gmail team immediately began assuring users that they were aware of the scam and working on eradicating it and any potential copycats.

There’s no happy ending to this story. Although vendors and cybersecurity experts were able to respond to the crisis on the same day it was released, millions of accounts were still affected. The best way to prepare your business is with thorough employee training and disaster recovery plans that are prepared to respond to a breach. To find out how we can protect your business, call today.